Abstract
Ion irradiation has been observed to induce a macroscopic flattening and in-plane shrinkage of graphene sheets without a complete loss of crystallinity. Electron diffraction studies performed during simultaneous in-situ ion irradiation have allowed identification of the fluence at which the graphene sheet loses long-range order. This approach has facilitated complementary ex-situ investigations, allowing the first atomic resolution scanning transmission electron microscopy images of ion-irradiation induced graphene defect structures together with quantitative analysis of defect densities using Raman spectroscopy.
| Original language | English |
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| Article number | 6334 |
| Number of pages | 7 |
| Journal | Scientific Reports |
| Volume | 4 |
| DOIs | |
| Publication status | Published - 6 Oct 2014 |